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<h1 class="topictitle1">步骤5：执行备份</h1>
<div><p>执行备份前将需要保护的资源关联到指定SLA，系统将对这些资源按照SLA进行保护，并根据SLA周期性执行备份任务。如需立即执行一次备份任务时，可以通过手动备份实现。</p>
<div class="section"><h4 class="sectiontitle">注意事项</h4><ul><li>手动备份时，SLA中定义的参数（<span class="uicontrol">“<span>失败后自动重试</span>”</span>除外），如<span class="uicontrol">“<span>限速策略</span>”</span>、<span class="uicontrol">“<span>自动索引</span>”</span>会应用到手动备份任务中。</li><li>手动备份产生的副本保留时长按照SLA中的定义进行保留。</li></ul>
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<div class="section"><h4 class="sectiontitle">操作步骤</h4><ol><li><span>选择<span class="uicontrol" id="nas_s_0017_0__zh-cn_topic_0000001839142377_uicontrol72431342173117">“<span id="nas_s_0017_0__zh-cn_topic_0000001839142377_text152438422312">保护</span> &gt; 文件系统 &gt; NDMP”</span>。</span></li><li><span>在需要保护的NDMP NAS文件系统所在行，单击<span class="uicontrol">“<span>更多</span> &gt; <span>保护</span> ”</span>。</span><p><p>如以文件目录进行备份，您也可以选择<span class="uicontrol">“文件目录”</span>，在文件目录所在行，单击<span class="uicontrol">“更多 &gt; 保护”</span>。</p>
</p></li><li><span>选择SLA。</span><p><div class="p" id="nas_s_0017_0__zh-cn_topic_0000001964713008_p16181740836">您也可以单击<span class="uicontrol" id="nas_s_0017_0__zh-cn_topic_0000001964713008_uicontrol744210206420">“<span id="nas_s_0017_0__zh-cn_topic_0000001964713008_text1873812341015">创建</span>”</span>，创建新的SLA。<div class="note" id="nas_s_0017_0__zh-cn_topic_0000001964713008_note25947145710"><img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span><div class="notebody"><p id="nas_s_0017_0__zh-cn_topic_0000001964713008_p125947145711"><span id="nas_s_0017_0__zh-cn_topic_0000001964713008_ph1413818422327">如果待保护的资源已设置WORM策略，为避免WORM策略冲突，请选择不包含WORM策略的SLA创建保护。</span></p>
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</p></li><li><span>选择代理主机。</span><p><p>系统默认选择内置代理，当存在外置代理时，还可以选择外置代理。</p>
</p></li><li><span>输入过滤文件/目录。</span><p><div class="note"><img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span><div class="notebody"><p><span style="color:#1A1A1A;">备份时待过滤的文件或目录。输入的文件名或目录名需要满足以下条件：</span></p>
<ul><li><span style="color:#1A1A1A;">不允许指定完整路径。</span></li><li><span style="color:#1A1A1A;">星号（*）是通配符，必须是文件名或目录名的第一个或最后一个字符。</span></li><li><span style="color:#1A1A1A;">每个字符串最多可以包含两个星号（*）。</span></li><li><span style="color:#1A1A1A;">文件名或目录名中的逗号前必须有一个反斜杠（\）。</span></li><li><span style="color:#1A1A1A;"> 最多可以输入32个名称。</span></li><li><span style="color:#1A1A1A;">单个文件名或目录名最多包含255个字符。</span></li></ul>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption><b>表1 </b>NDMP NAS文件系统保护高级参数说明</caption><colgroup><col style="width:26.009999999999998%"><col style="width:73.99%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="26.009999999999998%" id="mcps1.3.3.2.5.2.2.2.3.1.1"><p>参数</p>
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<th align="left" class="cellrowborder" valign="top" width="73.99%" id="mcps1.3.3.2.5.2.2.2.3.1.2"><p>说明</p>
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<tbody><tr><td class="cellrowborder" valign="top" width="26.009999999999998%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><div class="p">备份副本自动索引<div class="note" id="nas_s_0017_0__vmware_gud_0028_note17447255201"><span class="notetitle"> 说明： </span><div class="notebody"><p id="nas_s_0017_0__vmware_gud_0028_vmware_gud_0028_p168431642184919">仅1.6.0及后续版本支持此参数。</p>
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<td class="cellrowborder" valign="top" width="73.99%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><div class="p">开启后，支持搜索副本中的文件、目录或链接。<div class="note"><span class="notetitle"> 说明： </span><div class="notebody"><p>索引需要占用备份存储空间，当系统中的索引文件总数超过10亿时，请按照<span>《OceanProtect DataBackup 1.5.0-1.6.0 故障处理》</span>中的“创建副本索引失败”章节进行处理。</p>
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</p></li><li><span>单击<span class="uicontrol" id="nas_s_0017_0__zh-cn_topic_0000001964713008_zh-cn_topic_0000001656691397_uicontrol471113581111">“确定”</span>。</span><p><p id="nas_s_0017_0__zh-cn_topic_0000001964713008_zh-cn_topic_0000001656691397_p25041111535">如果当前系统时间已晚于SLA首次备份的开始时间，可以在弹出的对话框中选择立即执行手动备份或者根据SLA中设置的备份策略周期性自动执行备份。</p>
</p></li><li><span>执行手动备份。</span><p><p>当需要立即执行一次备份任务时，可以执行以下操作进行手动备份。否则，可跳过本步骤。</p>
<ol type="a"><li>在需要保护的NDMP NAS文件系统所在行，单击<span class="uicontrol">“<span>更多</span> &gt; <span>手动备份</span> ”</span>。<div class="note"><img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span><div class="notebody"><ol><li>支持选择多个资源批量进行手动备份。勾选多个资源，在页面左上角选择<span class="uicontrol">“<span>更多</span> &gt; <span>手动备份</span>”</span>。</li></ol>
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</li><li>设置手动备份产生的副本名称。<div class="p">如果您不设置，系统默认设置副本名称为：backup_时间戳。<div class="note"><img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span><div class="notebody"><p><span id="nas_s_0017_0__zh-cn_topic_0000001964713008_ph19374310343">对于1.6.0及后续版本，如果选择的保护策略与关联的SLA中配置的保护策略不一致，则WORM配置不生效。</span></p>
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</li><li>单击<span class="uicontrol">“<span>确定</span>”</span>。</li></ol>
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